Airbag and vehicle

Abstract

The utility model relates to a kind of safety air bag and vehicle, safety air bag includes gas generator and air bag, gas generator and air bag air bag have folding state and unfolded state, gas generator and air bag are all installed in instrument panel, gas generator is connected with air bag, gas generator is set to be inflated to air bag after being triggered, to make air bag eject from instrument panel and from folding state unfold to unfolded state;The profile of the orthographic projection of air bag in the Y direction of vehicle coordinate system in unfolded state includes successively head-to-tail connected instrument panel support section, first section, windshield support section, second section, receiving section and third section;At least part of first section is set to recess towards the inside of air bag and / or at least part of second section is set to recess towards the inside of air bag.

Description

Technical Field

[0001] This utility model relates to the field of automotive passive safety devices, and more specifically to an airbag and a vehicle. Background Technology

[0002] As a key component of a vehicle's passive safety system, airbags rapidly inflate and deploy upon impact, forming a buffer structure to absorb kinetic energy and significantly reduce impact forces on critical areas such as the head and chest. Airbags typically consist of a gas generator and an airbag. After a collision, the gas generator is triggered and inflates the airbag. The deployed airbag is positioned in front of the occupant, providing support and protection. To provide effective protection, the inflated airbag needs to fill the space between the windshield and the dashboard to ensure stable support. Currently, to achieve this, a common practice is to use a large-volume airbag paired with a high-output gas generator; however, this significantly increases costs. Utility Model Content

[0003] The purpose of this invention is to provide a safety airbag and vehicle that can provide effective protection using a small airbag, thereby reducing costs.

[0004] To achieve the above objectives, the present invention provides an airbag comprising a gas generator and an air bag, wherein the gas generator and the air bag have a folded state and an unfolded state, both the gas generator and the air bag are mounted in an instrument panel, the gas generator is connected to the air bag, and the gas generator is configured to inflate the air bag upon being triggered, thereby ejecting the air bag from the instrument panel and unfolding it from the folded state to the unfolded state;

[0005] The outline of the airbag in the deployed state, projected along the Y-axis of the vehicle coordinate system, includes the dashboard support section, the first section, the windshield support section, the second section, the connecting section, and the third section, which are connected end to end in sequence.

[0006] At least a portion of the first section is configured to be recessed toward the inside of the air bag and / or at least a portion of the second section is configured to be recessed toward the inside of the air bag.

[0007] Optionally, when at least a portion of the first section is configured to be recessed toward the inside of the air bag, the first section is located further out of the air bag than the first imaginary line; wherein the first imaginary line is the extension of the center point of the upper plane of the gas generator along the Z direction of the vehicle coordinate system.

[0008] Optionally, the first section is a smooth curve that passes sequentially through the connection point between the dashboard support section and the first section, the intersection of the first imaginary line and the second imaginary line, and the connection point between the windshield support section and the first section; wherein, the second imaginary line is a line that passes through the connection point between the windshield support section and the first section and is perpendicular to the windshield.

[0009] Optionally, when at least a portion of the second section is configured to be recessed toward the inside of the airbag, the second section is located further out of the airbag than the third imaginary line; wherein the third imaginary line is an extension of the center of the occupant's head in a normal sitting posture along the X-direction of the vehicle coordinate system.

[0010] Optionally, the occupant's body type corresponds to 5% female dummy, 50% male dummy, or 95% male dummy.

[0011] Optionally, the second section is a smooth curve that passes sequentially through the connection point between the windshield and the second section, the intersection of the third and fourth imaginary lines, and the connection point between the receiving part and the second section.

[0012] Optionally, at least a portion of the third section is located further outward from the fifth imaginary line; wherein the fifth imaginary line is the extension of the fixed point of the gas generator and the instrument panel along the X-direction of the vehicle coordinate system.

[0013] Optionally, the length of the third segment is 1.2 to 1.6 times the distance between the two endpoints of the third segment.

[0014] Optionally, the air bag includes a main piece, a first side piece, and a second side piece. The main piece is connected end to end to form a ring structure, and the first side piece and the second side piece are respectively fixed to both sides of the ring structure to form a closed air bag.

[0015] The main piece of the ring structure is formed by connecting the dashboard support, the first transition part, the windshield support, the second transition part, the receiving part and the third transition part end to end in sequence. In the unfolded state, the dashboard support part is used to be supported by the dashboard, the windshield support part is used to be supported by the windshield, and the receiving part is used to receive the occupants.

[0016] The dashboard support section is the outline of the dashboard support portion in the unfolded state projected along the Y-axis of the vehicle coordinate system; the first section is the outline of the first transition portion in the unfolded state projected along the Y-axis of the vehicle coordinate system; the windshield support section is the outline of the windshield support portion in the unfolded state projected along the Y-axis of the vehicle coordinate system; the second section is the outline of the second transition portion in the unfolded state projected along the Y-axis of the vehicle coordinate system; the receiving section is the outline of the receiving portion in the unfolded state projected along the Y-axis of the vehicle coordinate system; and the third section is the outline of the third transition portion in the unfolded state projected along the Y-axis of the vehicle coordinate system.

[0017] Optionally, the air bag further includes a connecting strap located inside the air bag, one end of which is connected to the first transition portion and the other end of which is connected to the second transition portion.

[0018] Optionally, the connecting strip includes a first sub-strip and a second sub-strip, one end of the first sub-strip is connected to the first transition portion, the other end of the first sub-strip is connected to one end of the second sub-strip, and the other end of the second sub-strip is connected to the second transition portion.

[0019] This utility model also provides a vehicle, characterized in that it includes the airbag described above. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the airbag after deployment according to an embodiment of the present invention, for ease of comparison. Figure 1 The image also shows the existing airbag after it has been deployed;

[0021] Figure 2 This is an exploded view of the air bag according to an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the structure of an air bag with a connecting strap according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the main piece connecting the first sub-tape and the second sub-tape according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the vehicle coordinate system according to an embodiment of the present utility model. Detailed Implementation

[0025] The preferred embodiments of this utility model are given below with reference to the accompanying drawings and described in detail.

[0026] like Figure 1As shown, this utility model embodiment provides an airbag, which includes a gas generator 100 and an airbag 200. Both the gas generator 100 and the airbag 200 are installed in the dashboard 300. The airbag 200 has a folded state and an deployed state. The gas generator 100 is connected to the airbag 200 and is configured to inflate the airbag 200 upon triggering, causing the airbag 200 to eject from the dashboard 300 and deploy from the folded state to the deployed state. In the deployed state, part of the airbag 200 is located in the space between the dashboard 300 and the windshield 400, and part extends outward from the space between the dashboard 300 and the windshield 400. The portion extending beyond the space between the dashboard 300 and the windshield 400 is located between the occupant and the dashboard 300 and the windshield 400, serving to support the occupant and prevent contact between the occupant and the dashboard 300 and the windshield 400, thus protecting the occupant. Both the dashboard 300 and the windshield 400 will impact the deployed airbag. To ensure the stability of the airbag 200, the airbag 200 needs to include the following three parts: a part for being supported by the dashboard 300 (this part is in close contact with the dashboard 300), a part for being supported by the windshield 400 (this part is in close contact with the windshield 400), and a part for receiving the occupants. The above three parts are spaced apart from each other, and any two of the above three parts are connected by a transition part. For ease of description, the part of the airbag 200 supported by the dashboard 300 is called the dashboard support part, the part of the airbag 200 supported by the windshield 400 is called the windshield support part, the part of the airbag 200 for receiving the occupants is called the receiving part, the part between the dashboard support part and the windshield support part of the airbag 200 is called the first transition part, the part between the windshield support part and the receiving part of the airbag 200 is called the second transition part, and the part between the receiving part and the windshield support part of the airbag 200 is called the third transition part.

[0027] The outline of the deployed airbag 200, projected along a first direction (a horizontal direction transverse to the ejection direction of the airbag 200), is a closed shape, which can be divided into four sequentially connected sections: dashboard support section L1, first section L2, windshield support section L3, second section L4, connecting section L5, and third section L6. Dashboard support section L1 is the outline of the dashboard support portion projected along the first direction; first section L2 is the outline of the first transition portion projected along the first direction; windshield support section L3 is the outline of the windshield support portion projected along the first direction; second section L4 is the outline of the second transition portion projected along the first direction; connecting section L5 is the outline of the connecting portion projected along the first direction; and third section L6 is the outline of the third transition portion projected along the first direction. For example, the first direction is the Y-axis of the vehicle coordinate system (i.e., the vehicle's transverse direction).

[0028] The existing airbag 20, when deployed, also includes a dashboard support section, a first section, a windshield support section, a second section, a connecting section, and a third section in its orthographic projection along the first direction. For ease of comparison, in... Figure 1 The outline of the conventional airbag 20 after deployment along the first direction is shown in black lines, while the outline of the airbag 200 of this embodiment after deployment along the first direction is shown in blue lines. Figure 1 It can be seen that the existing airbag 10, after being deployed, basically forms an outward convex shape, thus its volume is relatively large. In order to reduce the volume, the volume of one or more of the following parts needs to be reduced: the dashboard support, the first transition part, the windshield support, the second transition part, the receiving part, and the third transition part. However, in order to ensure the support stability of the airbag and the performance of supporting the occupants, the volume of the dashboard support, the windshield support, and the receiving part cannot be reduced. The first transition part, the second transition part, and the third transition part do not need to contact other components and occupants. Therefore, the volume of the airbag can be reduced by reducing the volume of one or more of the first transition part, the second transition part, and the third transition part. Therefore, the airbag 200 of this invention adopts the same dashboard support, windshield support, and receiving portion as the existing airbag 20. Thus, the dashboard support section, windshield support section, and receiving section of the airbag 200 and the existing airbag 20, as projected along the first direction, overlap. Furthermore, by changing the contours of the first section L2, the second section L4, and the third section L6, the volume of the first transition portion, the second transition portion, and the third transition portion can be reduced. For example, the first section L2' of the existing airbag 20 protrudes outwards; by setting at least a portion of the first section L2' of the airbag 200 to be recessed inwards, the volume of the first transition portion can be made smaller. Figure 1 The volume of the region between L2 and L2' (marked by red shading) is the volume that the first transition section reduces. Similarly, the second segment L4' of the existing airbag 20 protrudes outwards from the airbag 20. By making at least a portion of the second segment L4' of the airbag 200 recessed inwards from the airbag 200, the volume of the second transition section can be made smaller. Figure 1 The volume of the area between L4 and L4' (marked by red shading) is the volume reduced by the second transition section. The existing third section L6' of the air bag 20 is set to bulge outwards from the air bag 20 (i.e., the curvature direction of the third section L6' points towards the inside of the air bag 20). To ensure the support stability of the air bag 200, the third section L6 also needs to bulge outwards from the air bag 200, and cannot be recessed. At this time, in order to reduce the volume of the third transition section, the curvature of the third section L6 of the air bag 200 can be reduced, that is, the third section L6 can be set to be more gentle. Figure 1The volume of the region between L6 and L6' (marked in red shading) is the reduced volume of the third transition section. The third section L6 can be configured as a protrusion at least partially towards the outer side of the air bag 200.

[0029] Understandable Figure 1 The areas marked by the three red shaded lines are the areas that can be reduced. In practical applications, it is not necessary to reduce the volume of the above three areas at the same time. Instead, the volume of any one of the above three areas can be reduced according to actual needs, thereby achieving the purpose of reducing the volume of the airbag.

[0030] Assume the connection point between the instrument panel support section L1 and the first section L2 is A, the connection point between the first section L2 and the windshield support section L3 is B, the connection point between the windshield support section L3 and the second section L4 is C, the connection point between the second section L4 and the supporting section L5 is D, the connection point between the supporting section L5 and the third section L6 is E, and the connection point between the third section L6 and the instrument panel support section L1 is F. The first imaginary line P1 is the extension of the upper plane center point of the gas generator 100 along the Z-direction of the vehicle coordinate system. The second imaginary line P2 is the line passing through point B and perpendicular to the windshield 400. The first section L2 is located further outward from the first imaginary line P1, thus ensuring sufficient support stability for the airbag 200. Preferably, the intersection point of the first imaginary line P1 and the second imaginary line P2 is G, and the first segment L2 is a smooth curve passing through points A, G and B. In this way, the support stability of the air bag 200 can be guaranteed, and the volume of the first segment can be reduced as much as possible.

[0031] The third imaginary line P3 is the extension of the center of the occupant's head in a normal sitting posture along the vehicle's longitudinal direction (i.e., the X-axis of the vehicle coordinate system). The occupant's body shape corresponds to a 5% female dummy, a 50% male dummy, a 95% male dummy, or any other dummy size. The fourth imaginary line P4 is the line passing through point C and perpendicular to the windshield 400. The second segment L4 is located further outward from the airbag 200 compared to the third imaginary line P3, thus ensuring sufficient support stability for the airbag 200. Preferably, the intersection of the third imaginary line P3 and the fourth imaginary line P4 is H, and the second segment L4 is a smooth curve passing through points C, H, and D. This ensures both the support stability of the airbag 200 and minimizes the volume of the second segment.

[0032] The fifth imaginary line P5 is the extension of the fixed point of the gas generator 100 and the instrument panel 300 along the X-direction of the vehicle coordinate system. At least a portion of the third segment L6 is located outside the airbag 200 relative to the fifth imaginary line P5 (i.e., the third segment L6 cannot be entirely located inside the airbag 200 than the fifth imaginary line P5), thus ensuring the support stability of the airbag 200. The length of the third segment L6 can be set to 1.2 to 1.6 times the length of the line segment EF (i.e., the distance between the two endpoints of the third segment L6).

[0033] exist Figure 1 In the diagram, each imaginary line is displayed with a green dotted line to avoid confusion with other lines.

[0034] like Figure 2 As shown, the airbag 200 may include a main piece 210, a first side piece 220, and a second side piece 230. The main piece 210 is connected end to end to form a ring structure. The first side piece 220 and the second side piece 230 are respectively fixed to both sides of the ring structure to form a closed airbag 200. In the deployed state, the first side piece 220 and the second side piece 230 are both parallel to the XZ plane of the vehicle coordinate system, while the main piece 210 is perpendicular to the XZ plane. Therefore, the outline of the airbag 200 projected along the Y direction is the same as the outer outline of the first side piece 220 and the second side piece 230, and also the same as the outer outline of both sides of the ring-shaped main piece 210. The instrument support, the first transition part, the windshield support, the second transition part, the receiving part, and the third transition part are all parts on the main piece 210. The instrument support, the first transition part, the windshield support, the second transition part, the receiving part, and the third transition part are connected end to end in sequence to form the ring-shaped main piece 210. The two ends of the main piece 210, as well as the main piece 210, the first side piece 220, and the second side piece 230, can be sewn together. Figure 2 The pink lines are sewing thread.

[0035] Since the instrument support, windshield support, and receiving portion are the same as those of the existing airbag 20, the shape and length of the instrument support section, windshield support section, and receiving section can be obtained based on existing technology. Furthermore, the first section and / or the second section and / or the third section can be improved according to the methods described in the above embodiments, thereby obtaining the orthographic projection contour of the improved airbag 200 along the Y direction after unfolding. This also yields the outer contours of the first side panel 220, the second side panel 230, and the annular main panel 210, thus obtaining the improved airbag 200. The specific method for obtaining the improved airbag 200 based on its orthographic projection contour along the Y direction after unfolding is existing technology and will not be elaborated here.

[0036] Figure 3 This is a structural diagram of an air bag 200 with a connecting strap 240. Figure 3In the diagram, the instrument panel 300 and windshield 400 are both orthographic projection views in the Y direction, while the airbag 200 is shown as a three-dimensional structure to more clearly display the internal connecting strap structure of the airbag 200. (See image below.) Figure 3 As shown, the airbag 200 also includes a connecting strap 240, which is located inside the airbag 200. One end of the connecting strap 240 is connected to the first transition portion, and the other end is connected to the second transition portion. The connecting strap 240 connects the first and second transition portions. The connecting strap 240 has a certain length, so that when the airbag 200 is folded, the connecting strap 240 is in a relaxed state. As the airbag 200 is gradually inflated and unfolded, the connecting strap 240 gradually becomes taut (i.e., straightened). The taut connecting strap 240 pulls the first and second transition portions, preventing the connection points between the first and second transition portions and the connecting strap 240 from expanding outwards, thus binding the first and second transition portions and reducing their volume. After being bound by the connecting strap 240, the first transition portion, windshield support portion, and second transition portion of the unfolded airbag 200 form a convex-shaped structure due to the concavity of the first and second transition portions. Because the first and second transition portions are concave, their volume is even smaller.

[0037] like Figure 4 As shown, the connecting strap 240 may include a first sub-strap 241 and a second sub-strap 242. One end of the first sub-strap 241 is connected to the first transition portion, and the other end of the first sub-strap 241 is connected to one end of the second sub-strap 242. The other end of the second sub-strap 242 is connected to the second transition portion. Thus, during the fabrication of the air bag 200, the first sub-strap 241 and the second sub-strap 242 can be first connected to the main piece 210, then the main piece 210 can be connected end-to-end to form a loop. Then, the first sub-strap 241 and the second sub-strap 242 can be connected, and then the first side piece 2... The second side piece 20 and the second side piece 230 are respectively fixed on both sides of the annular main piece 210 to obtain the required air bag 200. If the connecting strip 240 is a whole strip, then after the main piece 210 is connected end to end to form a ring, the two ends of the connecting strip 240 are connected to the first transition part and the second transition part respectively. However, the connecting strip 240 is located on the inside of the ring, which makes the connection more difficult. By dividing the connecting strip 240 into two, the main piece 210 can be connected to the two sub-strips before the end is connected. Then, after it becomes a ring, only the two sub-strips need to be connected, making the connection method simpler.

[0038] The first sub-belt 241 and the first transition section, the first sub-belt 241 and the second sub-belt 242, and the second sub-belt 242 and the second transition section can all be connected together by sewing. Figure 3 The pink lines in the text are sewing thread.

[0039] The gas generator 100 and the air bag 200 can be installed in a housing first, and then the housing is installed in the instrument panel 300. The housing is used to maintain the air bag 200 in a folded state before the air bag 200 is inflated. After the gas generator 100 is triggered, the air bag 200 will be inflated and ejected from the housing.

[0040] The airbag of this utility model embodiment can reduce the volume of the airbag 200 while ensuring the support stability of the airbag 200, thereby reducing the cost, by reducing the volume of the first transition part and / or the second transition part and / or the third transition part.

[0041] This utility model embodiment also provides a vehicle that includes the airbag described in the above embodiment.

[0042] like Figure 5 As shown, the vehicle coordinate system has the vehicle reference point O as its origin, with the X-axis pointing forward, the Y-axis pointing to the left side of the vehicle, and the Z-axis pointing upward (vertically) of the vehicle. In this invention, the X-direction refers to the direction parallel to the X-axis, the Y-direction refers to the direction parallel to the Y-axis, and the Z-direction refers to the direction parallel to the Z-axis. The vehicle reference point O can be any point inside or on the vehicle.

[0043] It should be noted that the present invention (e.g., a utility model concept, etc.) has been described in the specification and / or illustrated in the figures of this patent document according to exemplary embodiments; the embodiments of the present invention are presented by way of example only and are not intended to limit the scope of the present invention. The structure and / or arrangement of the elements of the utility model concept embodied in the present invention as described in the specification and / or illustrated in the figures are merely illustrative. Although exemplary embodiments of the present invention have been described in detail in this patent document, it will be readily understood by those skilled in the art that equivalents, modifications, variations, etc., of the subject matter of the exemplary and alternative embodiments are possible and are considered to be within the scope of the present invention; all such subject matter (e.g., modifications, variations, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the present invention. It should also be noted that various modifications, variations, substitutions, equivalents, alterations, omissions, etc., may be made in the configuration and / or arrangement of the exemplary embodiments (e.g., in terms of concept, design, structure, device, form, assembly, construction, means, function, system, process / method, steps, sequence of process / method steps, operation, operating conditions, performance, materials, composition, combination, etc.) without departing from the scope of this utility model; all such subject matter (e.g., modifications, variations, embodiments, combinations, equivalents, etc.) is intended to be included within the scope of this utility model. The scope of this utility model is not intended to be limited to the subject matter (e.g., details, structure, function, materials, behavior, steps, sequence, system, result, etc.) described in the specification and / or figures of this patent document. Considering that the claims of this patent document will be properly interpreted to cover the full scope of the subject matter of this utility model (e.g., including any and all such modifications, variations, embodiments, combinations, equivalents, etc.), it should be understood that the terminology used in this patent document is for the purpose of providing a description of the subject matter of exemplary embodiments and not as a limitation on the scope of this utility model.

[0044] It should also be noted that, according to exemplary embodiments, the present invention may include conventional techniques (e.g., techniques implemented and / or integrated in exemplary embodiments, modifications, variations, combinations, equivalents, etc.), or may include any other applicable techniques (now and / or in the future) with the ability to perform the functions and processes / operations described in the specification and / or illustrated in the figures. All such techniques (e.g., techniques implemented in the manner of embodiments, modifications, variations, combinations, equivalents, etc.) are considered to be within the scope of the present invention of this patent document.

Claims

1. An airbag, characterized in that, The device includes a gas generator and an air bag, the air bag having a folded state and an unfolded state, both the gas generator and the air bag being mounted in the dashboard, the gas generator being connected to the air bag, the gas generator being configured to inflate the air bag upon being triggered, causing the air bag to eject from the dashboard and unfold from the folded state to the unfolded state; The outline of the airbag in the deployed state, projected along the Y-axis of the vehicle coordinate system, includes the dashboard support section, the first section, the windshield support section, the second section, the connecting section, and the third section, which are connected end to end in sequence. At least a portion of the first section is configured to be recessed toward the inside of the air bag and / or at least a portion of the second section is configured to be recessed toward the inside of the air bag.

2. The airbag according to claim 1, characterized in that, When at least a portion of the first section is configured to be recessed toward the inside of the air bag, the first section is located further out of the air bag than the first imaginary line; wherein the first imaginary line is the extension of the center point of the upper plane of the gas generator along the Z direction of the vehicle coordinate system.

3. The airbag according to claim 2, characterized in that, The first section is a smooth curve that passes sequentially through the connection point between the instrument panel support section and the first section, the intersection of the first imaginary line and the second imaginary line, and the connection point between the windshield support section and the first section; wherein, the second imaginary line is a line that passes through the connection point between the windshield support section and the first section and is perpendicular to the windshield.

4. The airbag according to claim 1, characterized in that, When at least a portion of the second section is configured to be recessed toward the inside of the airbag, the second section is located further out of the airbag than the third imaginary line; wherein the third imaginary line is an extension of the center of the occupant's head in a normal sitting posture along the X direction of the vehicle coordinate system.

5. The airbag according to claim 4, characterized in that, The occupant's body type corresponds to 5% female dummy, 50% male dummy, or 95% male dummy.

6. The airbag according to claim 4, characterized in that, The second section is a smooth curve that passes sequentially through the connection point between the windshield and the second section, the intersection of the third and fourth imaginary lines, and the connection point between the receiving section and the second section.

7. The airbag according to claim 1, characterized in that, At least a portion of the third section is located further outward from the air bag than the fifth imaginary line; wherein the fifth imaginary line is the extension of the fixed point of the gas generator and the instrument panel along the X direction of the vehicle coordinate system.

8. The airbag according to claim 7, characterized in that, The length of the third segment is 1.2 to 1.6 times the distance between the two endpoints of the third segment.

9. The airbag according to claim 1, characterized in that, The air bag includes a main piece, a first side piece, and a second side piece. The main piece is connected end to end to form a ring structure. The first side piece and the second side piece are respectively fixed on both sides of the ring structure to form a closed air bag. The main piece of the ring structure is formed by connecting the dashboard support, the first transition part, the windshield support, the second transition part, the receiving part and the third transition part end to end in sequence. In the unfolded state, the dashboard support part is used to be supported by the dashboard, the windshield support part is used to be supported by the windshield, and the receiving part is used to receive the occupants. The dashboard support section is the outline of the dashboard support portion in the unfolded state projected along the Y-axis of the vehicle coordinate system; the first section is the outline of the first transition portion in the unfolded state projected along the Y-axis of the vehicle coordinate system; the windshield support section is the outline of the windshield support portion in the unfolded state projected along the Y-axis of the vehicle coordinate system; the second section is the outline of the second transition portion in the unfolded state projected along the Y-axis of the vehicle coordinate system; the receiving section is the outline of the receiving portion in the unfolded state projected along the Y-axis of the vehicle coordinate system; and the third section is the outline of the third transition portion in the unfolded state projected along the Y-axis of the vehicle coordinate system.

10. The airbag according to claim 9, characterized in that, The air bag also includes a connecting strap located inside the air bag. One end of the connecting strap is connected to the first transition portion, and the other end of the connecting strap is connected to the second transition portion.

11. The airbag according to claim 10, characterized in that, The connecting strip includes a first sub-strip and a second sub-strip. One end of the first sub-strip is connected to the first transition portion, and the other end of the first sub-strip is connected to one end of the second sub-strip. The other end of the second sub-strip is connected to the second transition portion.

12. A vehicle, characterized in that, Including the airbag as described in any one of claims 1-11.

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